Simple and fast determination of catecholamines in pharmaceutical samples using Ag+–3,3′,5,5′-tetramethylbenzidine as a colorimetric probe
Simple and fast determination of catecholamines in pharmaceutical samples using Ag+–3,3′,5,5′-tetramethylbenzidine as a colorimetric probe
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使用 Ag-3,3-2,5,5-四甲基联苯胺作为比色探针简单快速地测定药物样品中的儿茶酚胺
DOI:
10.1039/c5ay01353d
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发表时间:
2015-08
影响因子:
3.1
通讯作者:
Jinmao You
中科院分区:
文献类型:
--
作者:
Shuyun Zhu;Jing Yang;Xian-en Zhao;Rongmei Kong;Hua Wang;Jinmao You
Catecholamines, generally including dopamine (DA), epinephrine (EP), and norepinephrine (NE), are important neurotransmitters and serve many central nervous system functions. In this work, a simple colorimetric method for the determination of the three catecholamines is developed. The proposed method is based on the fact that Ag+ could oxidize 3,3′,5,5′-tetramethylbenzidine (TMB) to oxidized TMB (oxTMB) and induce a blue color solution corresponding to an absorption peak centered at 652 nm. However, the introduction of catecholamines could cause the reduction of oxTMB which results in the fading of the blue color quickly and a decrease of the absorbance at 652 nm. Based on this finding, we propose a method to quantitatively detect catecholamines with the help of UV-vis spectroscopy. The detection limit (S/N = 3) for DA, EP, and NE is 50 nM, 100 nM, and 150 nM, respectively. More importantly, this method is simple, fast and without the use of complicated nanomaterials. This method has been successfully applied to the detection of catecholamines in pharmaceutical samples.
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影响因子:
4.3
作者:
Qu, Konggang;Wang, Jiasi;Qu, Xiaogang
通讯作者:
Qu, Xiaogang
影响因子:
6.2
作者:
Xingwang Zheng;Zhihui Guo;Z. Zhang
通讯作者:
Xingwang Zheng;Zhihui Guo;Z. Zhang
影响因子:
13.3
作者:
Youhui Lin;Meili Yin;Fang Pu;Jinsong Ren;Xiaogang Qu
通讯作者:
Youhui Lin;Meili Yin;Fang Pu;Jinsong Ren;Xiaogang Qu
影响因子:
16.6
作者:
Kong, Biao;Zhu, Anwei;Shi, Guoyue
通讯作者:
Shi, Guoyue
DOI:
10.1021/la700555y
发表时间:
2007-06
期刊:
Langmuir : the ACS journal of surfaces and colloids
影响因子:
--
作者:
H. Wu;Tian‐Lu Cheng;W. Tseng
通讯作者:
H. Wu;Tian‐Lu Cheng;W. Tseng